Neb. Rev. Stat. §§ 60-3,112
If a truck, truck-tractor, or trailer is lawfully licensed under the laws of another state or province and is engaged in hauling grain or other seasonally harvested products from the field where they are harvested to storage or market during the period from June 1 to December 15 of each year or under emergency conditions, the right to operate over the highways of this state for a period of ninety days shall be authorized by obtaining a permit therefor from the county treasurer or his or her agent of the county in which grain is first hauled. Such permit shall be issued electronically upon the payment of a fee of twenty dollars for a truck or one hundred fifty dollars for any combination of truck, truck-tractor, or trailer. The fees for such permits, when collected, shall be remitted to the State Treasurer for credit to the Highway Cash Fund.
Neb. Rev. Stat. §§ 60-3,112